// Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

public protocol InliningPolicy {
    func shouldInline(_ expr: Expression) -> Bool
}

public struct AlwaysInline: InliningPolicy {
    public init() {}
    public func shouldInline(_ expr: Expression) -> Bool {
        return true
    }
}

public struct NeverInline: InliningPolicy {
    public init() {}
    public func shouldInline(_ expr: Expression) -> Bool {
        return false
    }
}
